Reduction rotary kiln micro-positive pressure control realization device

Abstract

The utility model discloses a reduction rotary kiln micro-positive pressure control realization device which comprises a control cabinet and a fan fixedly connected to the back face of the control cabinet, a shielding structure is arranged on the back face of the fan, a transmission structure located on the front side of the shielding structure is arranged on the top of the fan, and the shielding structure comprises a connecting block arranged on the top of the fan. The connecting block is fixedly connected with a fan, and a baffle is arranged on the back face of the fan. The sleeve plate is extruded through the transmission structure, the sleeve plate is extruded and drives the baffle to swing with the pin shaft on the surface of the connecting block as the axis, when the baffle moves to the back face of the output end of the fan, the effect of shielding and sealing the output end of the fan is achieved, and smoke recharge is prevented; according to the positive pressure control implementation device, the operation mode of an existing positive pressure control implementation device of the rotary kiln can be improved, after the positive pressure control implementation device is shut down, flue gas in the kiln is prevented from being recharged into the positive pressure control implementation device through the exhaust pipe, and the positive pressure control implementation device is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-positive pressure control of a reduction rotary kiln, in particular to a device for realizing micro-positive pressure control of a reduction rotary kiln. Background Art

[0002] A rotary kiln, also known as a rotary kiln, is a cylindrical object with a certain slope of 3 to 3.5%. Its working principle is mainly to promote the stirring of materials in the kiln through the rotation of the kiln, so that the materials can mix, contact and react with each other. The coal injection and combustion at the kiln head generate a large amount of heat, which is transferred to the material by flame radiation, hot air convection, kiln brick (kiln skin) conduction, etc. The material moves forward in the kiln relying on the slope of the kiln cylinder and the rotation of the kiln.

[0003] For example, the patent number published on the China Patent Network is: 201621153271.1, a fully automatic voltage-stabilized positive pressure control device, the main feature of which is to improve the existing electrically controlled positive pressure control device, using a controller with a set time and a logic circuit with variable output currents, connecting a pressure transmitter, a solenoid valve, and a solenoid coil, the solenoid coil controls the pressure regulating valve, the solenoid valve is connected to the pressure relief valve, the controller instructs the solenoid valve and the solenoid coil according to the electrical signal converted by the pressure transmitter from the gas pressure, the solenoid coil controls the pressure regulating valve, the solenoid valve controls the pressure relief valve, the display screen displays the status and pressure value and time parameter value of different stages, compared with the prior art, it has the advantages of being able to avoid artificial dry top, being safe and reliable, and fully automatically stabilizing the pressure in the electrical cabinet or motor body cavity.

[0004] However, the operation mode of the existing rotary kiln positive pressure control implementation device is relatively simple. After the control implementation device is shut down, the smoke inside the kiln will be re-injected into the positive pressure control implementation device through the exhaust pipe, causing damage to the positive pressure control implementation device.

[0005] Therefore, it is necessary to design and transform the device for realizing micro-positive pressure control of the reduction rotary kiln. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a reduction rotary kiln micro-positive pressure control implementation device, which has the advantage of preventing smoke back-injection, and solves the problem that the operation mode of the existing rotary kiln positive pressure control implementation device is relatively single. After the control implementation device is shut down, the smoke inside the kiln will back-inject into the interior of the positive pressure control implementation device through the exhaust pipe, causing damage to the positive pressure control implementation device.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for realizing micro-positive pressure control of a reduction rotary kiln, comprising a control cabinet;

[0008] The fan is fixedly connected to the back of the control cabinet;

[0009] A shielding structure is provided on the back of the fan;

[0010] The top of the fan is provided with a transmission structure located in front of the shielding structure;

[0011] The shielding structure includes a connecting block arranged on the top of the fan, the connecting block is fixedly connected to the fan, a baffle is arranged on the back of the fan, the baffle and the connecting block are movably connected via a pin shaft, a sleeve plate is fixedly connected to the top of the baffle, and the transmission structure can drive the sleeve plate to swing.

[0012] As a preferred embodiment of the utility model, the transmission structure includes a connecting frame fixedly connected to the top of the fan, the interior of the connecting frame is movably connected with a screw via a bearing, the surface of the screw is threadedly connected with a screw sleeve, the back of the screw sleeve is fixedly connected with a sliding rod, the sliding rod extends away from the side of the screw sleeve to the interior of the sleeve plate, and the sleeve plate and the sliding rod are slidably connected.

[0013] As a preferred embodiment of the utility model, a guide bar is fixedly connected to the interior of the connecting frame, and the guide bar extends to the interior of the screw sleeve from a side away from the connecting frame, and the screw sleeve and the guide bar are slidably connected.

[0014] As a preferred embodiment of the present invention, a transmission motor is fixedly connected to the left side of the connection frame, and the output end of the transmission motor is fixedly connected to the left end of the screw rod.

[0015] As a preferred embodiment of the present invention, a protective plate is fixedly connected to the front side of the connecting frame, and the protective plate extends from a side away from the connecting frame to the top of the connecting frame.

[0016] As a preferred embodiment of the utility model, a rubber pad is fixedly connected to the front side of the baffle, a side of the rubber pad away from the baffle is in contact with the output end of the fan, and the rubber pad is elastic.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The utility model extrude the sleeve plate through the transmission structure, and the sleeve plate is squeezed and drives the baffle plate to swing with the pin shaft on the surface of the connecting block as the axis. When the baffle plate moves to the back of the output end of the fan, the output end of the fan is shielded and sealed to prevent smoke from returning. The utility model can improve the operation mode of the existing rotary kiln positive pressure control implementation device. After the control implementation device is shut down, the smoke inside the kiln is prevented from returning to the inside of the positive pressure control implementation device through the exhaust pipe, thereby preventing the positive pressure control implementation device from being damaged.

[0019] 2. The utility model can drive the sleeve plate to swing stably by arranging the screw rod, the screw sleeve and the slide rod, and can prevent the baffle plate from loosening after adjustment.

[0020] 3. The utility model can limit the screw sleeve by setting the guide strip, so as to avoid the screw sleeve from tilting during the movement.

[0021] 4. The utility model can automatically drive the screw to rotate by setting a transmission motor, thereby improving the automation level of the control cabinet.

[0022] 5. The utility model can improve the safety of the control cabinet and reduce the contact area between the transmission structure and the external environment by providing a protective plate.

[0023] 6. The utility model can improve the sealing effect of the baffle and prevent smoke leakage by arranging the rubber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a rear view structural diagram of the utility model;

[0026] Figure 3 It is a rear view schematic diagram of the local structure of the utility model.

[0027] In the figure: 1. control cabinet; 2. fan; 3. shielding structure; 4. transmission structure; 5. connecting block; 6. baffle; 7. sleeve; 8. connecting frame; 9. screw; 10. screw sleeve; 11. slide rod; 12. guide strip; 13. transmission motor; 14. protective plate; 15. rubber pad. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 3 As shown, the utility model provides a reduction rotary kiln micro-positive pressure control implementation device, including a control cabinet 1;

[0030] A fan 2 is fixedly connected to the back of the control cabinet 1;

[0031] A shielding structure 3 is provided on the back of the fan 2;

[0032] A transmission structure 4 is provided on the top of the fan 2 and is located in front of the shielding structure 3;

[0033] The shielding structure 3 includes a connecting block 5 arranged on the top of the fan 2, the connecting block 5 is fixedly connected to the fan 2, a baffle 6 is arranged on the back of the fan 2, the baffle 6 is movably connected to the connecting block 5 through a pin shaft, a sleeve plate 7 is fixedly connected to the top of the baffle 6, and the transmission structure 4 can drive the sleeve plate 7 to swing.

[0034] refer to Figure 2 The transmission structure 4 includes a connecting frame 8 fixedly connected to the top of the fan 2, a screw 9 is movably connected to the interior of the connecting frame 8 through a bearing, a screw sleeve 10 is threadedly connected to the surface of the screw 9, a sliding rod 11 is fixedly connected to the back of the screw sleeve 10, and the sliding rod 11 extends from the side away from the screw sleeve 10 to the inside of the sleeve plate 7, and the sleeve plate 7 and the sliding rod 11 are slidably connected.

[0035] As a technical optimization solution of the utility model, by providing the screw rod 9, the screw sleeve 10 and the slide rod 11, the sleeve plate 7 can be driven to swing stably, and the baffle plate 6 can be prevented from loosening after adjustment.

[0036] refer to Figure 2 A guide bar 12 is fixedly connected to the interior of the connecting frame 8 , and the guide bar 12 extends to the interior of the screw sleeve 10 away from the side of the connecting frame 8 , and the screw sleeve 10 and the guide bar 12 are slidably connected.

[0037] As a technical optimization solution of the present invention, by providing the guide strip 12, the screw sleeve 10 can be limited to avoid the screw sleeve 10 from tilting during the movement.

[0038] refer to Figure 3 A transmission motor 13 is fixedly connected to the left side of the connecting frame 8 , and an output end of the transmission motor 13 is fixedly connected to the left end of the screw rod 9 .

[0039] As a technical optimization solution of the present invention, by providing a transmission motor 13 , the screw rod 9 can be automatically driven to rotate, thereby improving the automation level of the control cabinet 1 .

[0040] refer to Figure 3 A protective plate 14 is fixedly connected to the front of the connecting frame 8 , and the protective plate 14 extends from one side of the connecting frame 8 to the top of the connecting frame 8 .

[0041] As a technical optimization solution of the present invention, by providing the protection plate 14, the safety of the control cabinet 1 can be improved and the contact area between the transmission structure 4 and the external environment can be reduced.

[0042] refer to Figure 2 A rubber pad 15 is fixedly connected to the front of the baffle 6, and a side of the rubber pad 15 away from the baffle 6 is in contact with the output end of the fan 2, and the rubber pad 15 is elastic.

[0043] As a technical optimization solution of the present invention, by providing the rubber pad 15, the sealing effect of the baffle 6 can be improved to prevent smoke leakage.

[0044] The working principle and use process of the utility model are as follows: when in use, the fan 2 is driven to operate through the control cabinet 1, and the fan 2 guides the external airflow to enter the rotary kiln. When the fan 2 is closed, the transmission motor 13 is turned on, and the transmission motor 13 drives the screw 9 to rotate. The screw 9 uses the thread to push the screw sleeve 10 to move horizontally. During the movement of the screw sleeve 10, the slide bar 11 is driven to slide inside the sleeve plate 7. The sleeve plate 7 is squeezed and drives the baffle plate 6 to swing with the pin shaft on the surface of the connecting block 5 as the axis. When the baffle plate 6 moves to the back of the output end of the fan 2, the output end of the fan 2 is shielded and sealed to prevent smoke from returning.

[0045] In summary: the reduction rotary kiln micro-positive pressure control implementation device squeezes the sleeve plate 7 through the transmission structure 4, and the sleeve plate 7 is squeezed and drives the baffle 6 to swing with the pin shaft on the surface of the connecting block 5 as the axis. When the baffle 6 moves to the back of the output end of the fan 2, the output end of the fan 2 is shielded and sealed to prevent smoke backflow. The utility model can improve the operation mode of the existing rotary kiln positive pressure control implementation device. After the control implementation device is shut down, the smoke inside the kiln is prevented from backflowing into the inside of the positive pressure control implementation device through the exhaust pipe, thereby preventing the positive pressure control implementation device from being damaged.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for realizing micro-positive pressure control of a reduction rotary kiln, comprising a control cabinet (1); A fan (2) fixedly connected to the back of the control cabinet (1); Features: A shielding structure (3) is provided on the back of the fan (2); The top of the fan (2) is provided with a transmission structure (4) located in front of the shielding structure (3); The shielding structure (3) comprises a connecting block (5) arranged on the top of the fan (2), the connecting block (5) being fixedly connected to the fan (2), a baffle (6) being arranged on the back of the fan (2), the baffle (6) being movably connected to the connecting block (5) via a pin shaft, a sleeve plate (7) being fixedly connected to the top of the baffle plate (6), and the transmission structure (4) being capable of driving the sleeve plate (7) to swing.

2. The device for realizing micro-positive pressure control of a reduction rotary kiln according to claim 1, characterized in that: The transmission structure (4) comprises a connection frame (8) fixedly connected to the top of the fan (2); a screw rod (9) is movably connected to the interior of the connection frame (8) via a bearing; a threaded sleeve (10) is threadedly connected to the surface of the screw rod (9); a sliding rod (11) is fixedly connected to the back of the screw sleeve (10); a side of the sliding rod (11) away from the screw sleeve (10) extends to the interior of the sleeve plate (7); and the sleeve plate (7) and the sliding rod (11) are slidably connected.

3. The device for realizing micro-positive pressure control of a reduction rotary kiln according to claim 2, characterized in that: A guide bar (12) is fixedly connected to the interior of the connection frame (8), and the guide bar (12) extends to the interior of the screw sleeve (10) from a side away from the connection frame (8). The screw sleeve (10) and the guide bar (12) are slidably connected.

4. A device for realizing micro-positive pressure control of a reduction rotary kiln according to claim 2, characterized in that: A transmission motor (13) is fixedly connected to the left side of the connection frame (8), and the output end of the transmission motor (13) is fixedly connected to the left end of the screw rod (9).

5. The device for realizing micro-positive pressure control of a reduction rotary kiln according to claim 2, characterized in that: A protective plate (14) is fixedly connected to the front of the connection frame (8), and the protective plate (14) extends from a side away from the connection frame (8) to the top of the connection frame (8).

6. The device for realizing micro-positive pressure control of a reduction rotary kiln according to claim 1, characterized in that: A rubber pad (15) is fixedly connected to the front side of the baffle (6); a side of the rubber pad (15) away from the baffle (6) contacts the output end of the fan (2); and the rubber pad (15) is elastic.

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